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Finding the Fourth Proportional to 47,473.60, 71,188.80 and 25,281.28

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Solution

The fourth proportional to 47,473.60, 71,188.80 and 25,281.28 is: 37,910.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,473.60 : 71,188.80 = 25,281.28 : x
  2. Step 2: Convert to fraction form
    47,473.60/71,188.80 = 25,281.28/x
  3. Step 3: Cross multiply
    47,473.60x = 71,188.80 × 25,281.28
  4. Step 4: Simplify right side
    47,473.60x = 1,799,743,985.66
  5. Step 5: Solve for x
    x = 1,799,743,985.66/47,473.60
  6. Step 6: Final answer
    x = 37,910.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.